Corkscrew.



No. 800,682. PATENTED OCT. a, 1905 P. L. ROBERTSON.

GORKSGRBW.

APPLICATION FILED DEC. 12, 1904- UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application filed December 12, 1904. Serial No. 236,600.

To all 7.171107% it may concern.-

Be it known that I, PETER LYMBURNER RoB- ERTSON, of the village ofOanfield,in the county of Haldimand, in the Province of Ontario, Canada,have invented a new and useful Improvement in Corkscrews, of which thefollowing is a specification.

The nature of my invention relates to the way in which the corkscrew canbe screwed into the cork (that is to be drawn) by simply pressingdownward on the handle part of the device.

Further, the objects are: that the corkscrew may be rapidly andaccurately screwed into the cork, and for this purpose I provide atubular sleeve terminating in a corkscrewpoint, and within the sleeve isarranged to screw up and down a screw-threaded shaft mounted by asuitable handle. Rotatably connecting the shaft with the sleeve is acoupling-cap, to which is fastened the withdrawing-handle. The sleeve isalso adapted to receive and is provided with a removable cap thatfastens over the corkscrew. part,-so as to protect it and also make itconvenient for carrying. I attain these objects by the device asillustrated in the accompanying drawings, in which- Figure 1 is aperspective view of the cork screw in a condition that it might bescrewed into the cork. Fig. 2 is a perspective view showing thecorkscrew in the position as screwed into the cork. Fig. 3 is a verticalsectional view of the corkscrew closed up and the removable cap fastenedover the end. Fig. 4 is a perspective view of the fastening-nut removed.Fig. 5 is a perspective view of the withdrawing-handle removed, and Fig.6 is a perspective view of the coupling-cap removed.

Like letters refer to like parts throughout the specification anddrawings.

In the drawings, a represents a tubular metal sleeve of any suitablediameter or length, which terminates in a corkscrewpoint 5.

The sleeve a is adapted to rotate around the axis of a screw-threadedshaft 0, which is provided with an ordinary grip-handle d. Coupling theshaft 0 in rotatable connection with the sleeve (0 is a coupling-cap e.The coupling-cap 0 consists of a radial flange f and a dependingscrew-threaded flange g.

The top part of the sleeve (0 is screw-threaded, by which the cap 6 maybe screwed onto it. Passing through'the center part of the cap a is acircular opening IL, through which passes the shaft 0. extending downthe sides of the opening it are ribs c', adapted to engage in thechannels j in the shaft 0.

Adapted to and encircling the coupling-cap e is a withdrawing-handle k.The handle consists of a circular body part 1 and two arms extendingoutward therefrom, and through the center of the body part Z is acircular opening a, which encircles the flange g of the cap 6.

The handle it is revolubly held on the flange g by a lock-nut 0, adaptedto screw on the screw-threaded part of the flange g.

On the top face of the body part Z of the handle k is a circular seat p,adapted to receive the radial flange f of the cap 6.

In Fig. 2 I have shown the device with the withdrawing-handle k omitted,as I may not always find it necessary to have the handle, as I mayextend the flange f sufliciently that it may be utilized for the samepurpose.

In the drawings I have shown the shaft 0 provided with two spiralchannels j; but one or more may be used equally as well. Extendingthrough the bottom end of the shaft 0' is a pin q, that is adapted tocheck the upward travel of the shaft 0 by coming into engagement withthe ribs 6 in the opening it in the cap 6.

At the juncture of the corkscrew-point d and the sleeve (0 is a cut-awaysection 1', form- 'inga shoulder s, and on the cut-away section isadapted to fit up to the shoulder a removable cap t, which may beslipped onto the end of the sleeve to protectthe corkscrewpoint 6 or fora convenience for carrying.

Any of the parts may be slightly modified without deviating from thenature of my invention, as the essential feature of my invention lies inthe principle of a corkscrew which may be screwed into the cork solelyby a downward pressure, and to remove the cork from the corkscrew allthat is necessary is to take hold of the cork and draw upward on thehandle d, which causes thecorkscrew Z) to unscrew out of the cork.

The operation for drawing a cork from the bottle with my device is asfollows: The handle (1 is taken hold of and the sleeve part is helddownward, when it will rotate round the axis of the shaft and screwitself downward until its descent is checked by the pin q, engaging withthe rib When the device isarranged in this condition, the point 5 of thecorkscrew is placed on the cork and a Oppositely disposed and downwardpressure is given to the handle (Z, L a screw-threaded shaft adapted towork up,

which causes the shaft cto descend downinto the sleeve, at the same timecausing the sleeve to rotate around the shaft by the action of; the ribs1' engaging in the channels j. The downward pressure on the handle andshaft also acts as a downward pressure on the whole device, which isnecessary to cause the point of the corkscrew to enter into the cork."

\Vhen the shaft and handle have descended into the sleeve as far aspossible, the device is ready to draw the cork.

To draw the cork, the handle (Z and the withdrawing-handle Zware takentogether, and all the pull is necessary on the handle 72', as the handleZr, sleeve a, and corkscrew-point?) are all adapted to move together.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. A corkscrew comprising a tubular sleeve, said sleeve terminating in acorkscrew-point, a screw-thread ed shaft adapted to engage within saidsleeve, a handle mounted on said shaft, said sleeve adapted to rotateround the axis of said shaft, by the action of said shaft being presseddown into said sleeve, means for connecting the said shaftin rotatablecombination with the said sleeve, substantially as described.

- 2. A corkscrew consisting of a tubular sleeve terminating in acorkscrew-point, a screw-threaded shaft adapted to engage within saidsleeve, a handle mounted on said shaft, a coupling-cap adapted to screwon the top of said sleeve, said shaft adapted to pass through an openingin the center of said cap, ribs extending down the sides of saidopening, said ribs adapted to engage in spiral channels extending aroundthe said shaft, said sleeve adapted to rotate round the axis of saidshaft by the downward movement of the said shaft in the said sleeve,substantially as described.

3. A corkscrew com arisin a tubular sleeve a I I a e said sleevetermlnating 1n a corkscrew-point,

and down in said sleeve, a coupling cap screwed on the top of saidsleeve, said coupling-cap adapted to connect said sleeve in rotatablecombination with said shaft, a suitable handle fastened on the end ofsaid shaft, said sleeve adapted to rotate round the axis of said shaftby the movement up and down in said sleeve, substantially as described.

a. A corkscrew comprising a tubular sleeve,

said sleeve terminating in a corkscrew-point,

a screw-threaded shaft adapted to be operated up and down in saidsleeve, a coupling-cap fixed to said sleeve and adapted to connect saidshaft in combination with said sleeve,

said coupling-cap adapted to cause the said sleeve to rotate round theaxis of said shaft as the shaft is operated up and down in said sleeve,an operating-handle mounted on the top of said shaft, and awithdrawing-handle revolubly attached to the said coupling-cap,substantially as described.

5. A corkscrew comprising atu bular sleeve, said sleeve terminating in acorkscrew-point, a screw-threaded shaft adapted to operate up and downin said sleeve, a coupling-cap fixed to said sleeve and adapted toconnect said sleeve in rotatable combination with the said shaft, saidshaft adapted to pass through a circular opening in said cap, ribsformed in said opening and adapted to engage in the channels formed inthe said shaft, the said ribs engaging in said channels adapted to causethe said sleeve to rotate round the axis of said shaft when operated upor down in said sleeve, suitable handles mounted on the said sleeve andfastened to the said couplingcap, substantially as described.

Signed at Toronto this 23d day of November, A. D. 1904.

PETER L. ROBERTSON.

In presence of- A. A. ADAMS, A. S. MAoKAY.

